Plainfield is a city located in Hendricks County Indiana. With a 2020 population of 37,173, it is the 25th largest city in Indiana and the 1052nd largest city in the United States . Plainfield is currently growing at a rate of 2.60% annually and its population has increased by 34.53% since the most recent census, which recorded a population of 27,631 in 2010. Plainfield reached it's highest population of 37,173 in 2021. Spanning over 26 miles, Plainfield has a population density of 1,441 people per square mile.
The average household income in Plainfield is $87,565 with a poverty rate of 9.11%. The median rental costs in recent years comes to $1,001 per month, and the median house value is $170,400. The median age in Plainfield is 38 years, 37 years for males, and 38.6 years for females.